Air Quality in Tri-Cities, United States

Windy
33.0°C · 20.6% humidity
33.0°
Feels 33.0°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations

Nearby Monitoring Stations

AQI Forecast
24 11am
24
24
22 2pm
24
24
24 5pm
24
25
25 8pm
25
25
25 11pm
25
25
25 2am
27
27
25 5am
27
25
25 8am
25
25
AD 728×90

Air Quality Index Trend

48h · 6 stn

Tri-Cities's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Tri-Cities is 1.1× the WHO annual guideline of 5 µg/m³.

20.6%
Humidity
64.7 km/h
Wind SW
1017.8 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
22
5.25 µg/m³
PM10▲
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Tri-Cities?

Temperature & Precipitation

PM2.5 Trend

48h · 6 stations
PM2.55.25 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250
Station readings (6 stations within 25 km)
5.25
Median
4.57
Average
2.2
Low
7.98
High
PM2.5 µg/m³ · Model: 7.0 · Bias: +1.8

What is the 7-day forecast for Tri-Cities?

05-28
26.9° 13.5°
05-29
33.0° 11.7°
0.06 mm
05-30
23.9° 14.7°
05-31
37.0° 19.2°
06-01
29.0° 9.2°
06-02
34.2° 12.2°
06-03
28.4° 7.5°
Both models agree Avg diff: 4.8°C

Where are air quality stations near Tri-Cities?

16
Metaline, Kennewick, Washington, USA
3.0 km PM2.5: 3.8 µg/m³
35
Metaline, Kennewick, Washington, USA
3.0 km PM2.5: 8.4 µg/m³
18
Metaline, Kennewick, Washington, USA
3.0 km PM2.5: 4.3 µg/m³
8
Kennewick-S Steptoe St
5.8 km PM2.5: 2.0 µg/m³
33
Pasco
7.9 km PM2.5: 8.0 µg/m³
11
Burbank-Maple St
15.3 km PM2.5: 2.7 µg/m³
12
Finley-S Finley Rd
15.9 km PM2.5: 3.0 µg/m³

What cities are near Tri-Cities?

21 Kennewick 26 Pasco 20 Richland 36 Hermiston 25 Sunnyside 30 Walla Walla 23 Pendleton 26 Moses Lake 20 Yakima 20 Ellensburg
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T21:46 UTC.